Vehicle-spring.



D. R. CLOSE.

VEHICLE SPRING.

APPLIGATION FILED JUNE 25, 1909.

- Patented July 12, 1910.

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spring elements and on Specification of Letters Patent. Pater-rind Jail 35,553,

Application filed .Tune 25, 1909. Serial in. 504,280.

To e22 whom it may concern: Be it known that I,'D0RR zen. of the United States,

the extremity of the lower leaf srrii structure 6 and the vertically r tew portion ofthe upper spring is finer-pi: coiled spring 7 having its ends, on opposite sides of its vertical axis, turned up into eyes 8, 8, to bB'SBCllIBd to bolts 9, 9, passing through eyes 10,10, formed in inner and confronting eaves, at the extremity of the normal span of the arti-elliptical springs. -One of the parti-el iptical springs, referably' the upper 'one, has an integral sc'ro 1 extension, passing beyond and free from the coiled spring '7 and preferably below the position of horizontal alinement with v opposite parti-elliptical spring, such scroll portion being shown at 11.

The extremity of the leaf extension 11 is preferably "curled back upon itself and ornied into an eye 12 slightly below the horizontal plane of the eye and a connection substantially rigid in a lateral direc- R. CLOSE, a citi residing at Ohi- Illinois, ful Improvements in'Ve'hicle Springs, of which the following is a specification.

My invention relates to improvements in vehicle springs, and has for its general object to provide an easy riding, dampered, and non-side-swinging sprin structure of a type involving two parti-e ptical spring members, and a coiled spring interposed *therebetween.

Spring, structures have heretofore been proposed embodying upper and lower partielliptical springs having interposed between their contiguous ends pliant coiled springs, but such constructions havebeen disadvantageous in practiceion account of the side motion permitted by the laterally-flexible connection between the parti-elliptical account of liabilit of the spring toccontinuing motion or teetering resultingfrom undampered recoil.

My present invention provides a spring construction in which the parti-elliptical springs have interposed therebetween a pression spiral spring for taking up minor vibrations in conjunction with a simple, etlicient, durable, and e conomical arrange-- scroll"1'1'andthe extremity of the opposite parti elliptical spring, as by means of a pair of swinging, rigid links 13-43, cone nected attheir inner extremities to the bolts carried by scroll.

The spring element having the scroll exthe eye 12 in ment for avoiding undue recoil and pretension should relatively stiff through its tentln side motion between the parti-elli span to the po nt of connection with the ideal elements of the s ring and consequently coiled spring, while the COIIQaIId opposing between the associated? vehicle parts. leaf 8 ring plarrt are relatively pliant.

- I In the drawings, Figure 1 is a side eleva Un er a s ock,- the load superposed upon tien of a three-quarters elliptical spring h up 61 pal relllptlcal Spring, 5 0r 5, and structure embody ng my invention; Fig. 2 resiste by the support B of the lower spring shows a full elliptical structure embody- 6, tends to compress the coiled spring I, and

ng my'invent'i'on Fig. 3 3-3 of Fig. 1.. I,

Referring to Fig. 1, A indicates a portionof a vehicle body such as a frame member and B a portion of a running gear such as an axle to be connected to the frame member by a spring structure. 5 indicates an upper parti-elliptical leaf s ring structure and 6 a lower parti-elliptica lealf spring structure, the two springs being disposed oneabove the other. The only substantial difference between the constructions shown in Figs. land 2 is that the upper parti-elliptical structure quarter of an ellipse flatten out and lower leaf spring structure 6, the upper spring 5 within its supporting span receiving very little deflect'on. Such action tends tobring the outer extremities of the links is a section on line recoil, however, the tende spring 6 .to so rebound as to extremity upward and inward through a large arc is of the link 13 against the scroll, so that the whereas the structure shown in Fig. 2 1s a, both forms of spring'being well" lmown in automobile construction. Between pered and teetering or continuing vibra- -t1on of the sprin' action of the linis, furth 9,carried by the ends of leaf spring 6 and at their outer ends connected to the bolt =14,

the extremity of the elongate the relatively pliant tion is effected between the extremity of said resisted by the pull tail a specific construction embodying my limiting the invention to the precise or- .substantially vertical alineinent therein, a

the. connection between the upper and lower leaf spring structures laterally substantially rigid, and el lectually to prevent side swinging of the spring members relatively to each other under all conditions of operation.

While I have herein described in soine'deinvention, 1 do not desire to be understood gan'ization further than as set forth in the following claims.

What I claim is;

1. A vehicle spring structure comprising in combination two parti-elliptical springs, a coiled spring interposed between vertically substantially alining portions of said springs, ascroll extension of one of said leaf springs extending beyond the end of the other, and means for checking the recoil of the said second member comprising a substantially laterally rigid connection between the scroll portion and the end of the opposite leaf spring to which the coiled springis connected.

2. In a vehicle spring construction coniprising two part-i-elliptical springs, eyes in coiled spring interposed between and con nected with said eyes, a. scroll extension upon the end of one spring, and a substantially laterally-rigid connection between the end of said scroll extension and the eye on l the opposite spring to which the coiled spring is connected.

eeaevo 3. in. a vehicle spring'structure, two opposite parti-elliptical springs having substantially vertically alining eyes, one of said springs being relatively still, and the other relatively pliant, a. compression coiled spring interposed between said eyes, a scroll extension projecting from the stiller of said partielliptical springs outside of the coil and beyond the eye of the opposite relatively pliant spring, necting the extremity of said scroll and the eye of the opposite spring, an arrangement permitting straightening of the more pliant spring under a shock, and acting with the scroll, upon the recoil, to tend to damper the recoil action, and thereby to prevent teetering of the spring structure.

l. A vehicle spring structure comprising two parti-elliptical springs one above the other, a coiled spring interposed between the end or the lower of said springs and a substantially vertically alining portion of the upper spring, said u per spring having a scroll. extension exten ing to a point beyond and slightly below said end of the lower spring, and a link connection between the end of said scroll extension and the end or the lower spring.

In testimony whereof I hereunto set my hand in the presence of two witnesses.

' DORE R. CLOSE. .l'n the presence oflV, LINA ALLEN, MARY l ALLEN.

and a still swinging link con- 

